k rating and algae growth.

[timwag2001]

i have 2 different t5 bulbs one is a life glo and is 6700k and my other is a power glo and is 18000k.
i've been having a small prob with green spots of algae. is the power glo the cause?

 

[neilanh]

Probably not the cause, but the power glo is too high a K rating to be beneficial to your plants.

green spot algae is typically a sign of low phosphate levels.

 

[timwag2001]

will dosing w phosphate kill green spot?

 

[neilanh]

potentially, but you have to be careful, as overdosing will just cause you other problems.

Are you dosing any ferts right now? Running CO2? how big is the tank?

 

[timwag2001]

55g
diy c02 (5 2liter bottles)
i have been dosing flourish phosphate, iron and trace twice a week. and nitrate comes right from my faucet

 

[timwag2001]

i've dosed what was recommended and i still usually end up testing 0 iron and phosphate. could prob double what the directions say

 

[neilanh]

ALright, give it a try, try upping your phosphate dosing and see what happens.